28 replies to this topic

[stevo911_]

figured i'd bump this badboy since it seems theres more people posting about them again
also i read a thread a while where someone was posting about cbr 600 f2i carbs or something but its magially dissapeared it seems

[crx165]

CAR
1987 Civic DX hatch

ENGINE
D16a1

EXHAUST
4-2-1 Manifold to Janspeed 2.25" exhaust

CARBS
Kawasaki ZX6R Mikuni BDSR 36R 36mm carbs.

INTAKE MANIFOLD
Honda D16a9 manifold with alloy tubes welded on - vac feed from OEM injector ports

FUEL PUMP
Kawasaki ZX6R electric pump.

All installed (see pic below) - got fuel & spark (new plugs, leads, etc) BUT doesn't run.........? All vac feeds are fine from vac-log. Poured fuel down the spark plug holes and it briefly ran on all cylinders. Anyone any ideas whats up??



Any help would be great.

Cheers
Jonny

[zakats]

the carbs are perftect size for my B18 though....

http://www.redpepper...e...=30750&st=0

[zakats]

CAR
1987 Civic DX hatch

ENGINE
D16a1

EXHAUST
4-2-1 Manifold to Janspeed 2.25" exhaust

CARBS
Kawasaki ZX6R Mikuni BDSR 36R 36mm carbs.

INTAKE MANIFOLD
Honda D16a9 manifold with alloy tubes welded on - vac feed from OEM injector ports

FUEL PUMP
Kawasaki ZX6R electric pump.

All installed (see pic below) - got fuel & spark (new plugs, leads, etc) BUT doesn't run.........? All vac feeds are fine from vac-log. Poured fuel down the spark plug holes and it briefly ran on all cylinders. Anyone any ideas whats up??



Any help would be great.

Cheers
Jonny

check and recheck cam timing!

[crx165]

Checked the cam timing - was one tooth out on the exhaust cam, corrected it but still nothing.......... ?

Re-checked fuelling and spark, everything is good but its still not firing. Any other ideas?

Cheers
Jonny

Edited by crx165, 21 April 2008 - 03:56 PM.

[nature223]

just FYI..I know this isnt the correct thread...but I have two sets of older kawa bike carbs....think they are off a 750,I have the head too...but no nomenclature on them,they measure like 32mm on the throat.
PM if intrigued..their just sitting around.


MODS..move this if necessary...just fielding around if anyone here is interested in them.

email will follow with pics and better discription if interested

[EuphoricBlue]

Checked the cam timing - was one tooth out on the exhaust cam, corrected it but still nothing.......... ?

Re-checked fuelling and spark, everything is good but its still not firing. Any other ideas?

Cheers
Jonny

I don't want to hijack the thread, but if the carbs are anything like my R1 Mikunis, I may know what's wrong.

I'll send you a PM.

[zakats]

starting a bike carb'd car is something that requires fiddling with the idle screw a bunch and a lot of patients, if you haven't quite gotten it to start yet you might try a couple things.

make sure the idle screw is set to max or almost max idle open, not opened with your foot a little on the gas- this isn't the same thing and with some experience you will figure out why.
get a trusty helper to crank your engine over as you put your hand over a couple of the throttles to make a "choke" affect

or an easier way is to spray a fair amount of starting fluid in all the opened butterflies.

bike carb's are not like regular carbs, you start the car with your foot OFF the gas pedal- these carbs don't have accelerator pumps so when opening the butterflies you pretty much just lean the intake mix really bad to where it won't even try to start.

GO FORTH AND TRYeth MY METHOD

[crx165]

Thanks Zakats - I'll adjust the idle screw with some starting fluid and the other stuff. Thanks for your help.

Cheers
Jonny

[zakats]

not a problem- when you get it running, post some videos! I'm anxious to see another ITC setup running.
best of luck
-zak

[crx165]

Haven't updated here for a while.

After a few variation of an intake manifold, finally got it sorted(ish)

Started with the setup further up this thread then this one:


And ended up with a custom pro job - Spec'd to my dimensions
Can anyone spot the mistake? So need to take it back for an adjustment :roll: bit of miscommunication!
Anyway still looks great.



Built in Vac feeds

Water feed

Very clean port entry



This is the issue I'm getting sorted - was a bit of miscommunication
So the runners currently bend down instead of up (steady girls!!) But if length counts...... :wink: !


Hopefully the adjustment can be made next week - and get it on and running before next weekend.

Cheers
Jonny

[zakats]

I hope that's enough angle, it doesn't quite look like 45 degrees

[P-Tail]

Too bad about the misunderstanding, but it will look good! How much does a piece like that cost to get made?

[crx165]

Zakats: When the runners are rewelded (rotated 180*) the angle is 35* + the engine tilt = 45*. On the previous setup (blue couplings) it ran +/- 5*.

P-Tail: Cost me £200 ($400) - expensive but its part of a package I'm putting together (tuned length header, etc, etc) and there isn't anything off the shelf to the correct spec that I wanted.

Baseline dyno run in the next month or so - then a ported race head goes on, a custom tuned header, probably CDI ignition system, adjustable camgears and lots of tuning. Part 2 is (eventually) an increase in displacement, 11:1CR, big cams, bigger carbs, blah, blah, blah.

Jonny